SMS02S1 Equivalent & Substitute Parts Reference

Part Overview

The SMS02S1 is an interlock magnetic DPST switch manufactured by Carlo Gavazzi Inc., designed for non-contact magnetic actuation applications. This component operates with a 100mA AC / 250mA DC current rating and supports dual supply voltages of 120VAC and 50VDC. The device features wire lead termination and IP67 ingress protection, making it suitable for dust-tight and waterproof environments.

The SMS02S1 is classified as obsolete. Locating equivalent or substitute components is necessary to maintain system functionality and ensure continued availability for new designs or replacement applications.

Substiute Parts

SMS02S1

Carlo Gavazzi Inc.In Stock: 826SMS02S1 Datasheet

Current PartRFQ

MC88CH1O1CRA2

Carlo Gavazzi Inc.In Stock: 986MC88CH1O1CRA2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The MC88CH1O1CRA2 is identified as a substitute for the SMS02S1 based on the following substitution criteria:

Common Functional Parameters:

• Manufacturer: Carlo Gavazzi Inc. (same manufacturer ensures design compatibility and support continuity)
• Magnetic actuation principle (non-contact switching via magnet)
• Output configuration: NO/NC capability (equivalent to DPST-NO/NC)
• Operating temperature overlap: -25°C to 80°C (encompasses SMS02S1 range of -25°C to 70°C)
• Supply voltage compatibility: 12V to 24V range supports low-voltage DC applications

Substitution Basis: The MC88CH1O1CRA2 operates as a reed switch magnetic sensor with equivalent switching logic and environmental protection. Both components utilize magnetic actuation for non-contact operation and are rated for industrial environments with IP67 protection considerations.

Parameter Comparison

Engineering Selection Recommendations

The MC88CH1O1CRA2 is an active product from Carlo Gavazzi Inc. and represents a viable path forward for applications requiring magnetic switch functionality. The transition from the obsolete SMS02S1 to the MC88CH1O1CRA2 is supported by:

• Continued manufacturer support and availability (920 Pcs in stock)
• Equivalent magnetic actuation principle and non-contact operation
• Compatible operating temperature range with extended upper limit
• Matching ingress protection classification for sealed environments
• Same manufacturer ensures design philosophy and reliability standards alignment

Applications operating at 120VAC or 50VDC will require circuit redesign to accommodate the MC88CH1O1CRA2's 12V to 24V supply voltage specification. Current rating differences (100mA AC / 250mA DC for SMS02S1 versus unspecified for MC88CH1O1CRA2) must be evaluated against specific load requirements.

Frequently Asked Questions (FAQ)

Q: Can the MC88CH1O1CRA2 directly replace the SMS02S1 without circuit modifications?

A: Direct replacement is not possible without circuit modifications. The SMS02S1 operates at 120VAC and 50VDC, while the MC88CH1O1CRA2 requires 12V to 24V supply voltage. Power supply redesign is necessary.

Q: What are the key compatibility factors between these components?

A: Both components share magnetic actuation, non-contact operation, NO/NC output capability, and IP67-level environmental protection. Operating temperature ranges overlap, with the MC88CH1O1CRA2 providing extended upper temperature capability.

Q: How do the termination styles differ?

A: The SMS02S1 uses wire leads for direct circuit connection, while the MC88CH1O1CRA2 uses cable termination with flange mount packaging. Integration method and mechanical mounting will differ accordingly.

Q: Is the MC88CH1O1CRA2 suitable for all SMS02S1 applications?

A: Suitability depends on application-specific requirements for supply voltage, current load, and mechanical mounting. The voltage specification difference is the primary limiting factor for direct substitution.

Q: What is the operational distance specification for the MC88CH1O1CRA2?

A: Must operate and must release distances are not provided in the available specifications for the MC88CH1O1CRA2. These parameters must be obtained from the manufacturer's detailed datasheet for critical applications.